#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define rep(i, a, b) for (int i = (a); i <= (b); i++)
#define per(i, a, b) for (int i = (a); i >= (b); i--)
#define endl '\n'
const int N = 1e6 + 5;

int n, m;
int a[N];

int main() {
  ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
  cin >> n >> m;
  rep(i, 1, n) cin >> a[i];
  while (m--) {
    int x;
    cin >> x;
    int pos = lower_bound(a + 1, a + n + 1, x) - a;
    if (pos > n || a[pos] != x)
      cout << -1;
    else
      cout << pos;
    cout << ' ';
  }
  return 0;
}